@CHARSET "UTF-8";
#list{
	width:300px;
	}
.has_children{
	background: #555;
	color:#fff;
	cursor:pointer;
}
.highlight{
	color: #fff;
	background: green;
}
#a{
	background-color:#333;
	display: none;
	float:left;
	width:300px;
}
div{
	padding: 0;
	margin: 10px 0;
}